Game World (Other Worlds #3)

Find the key! Open the doorway! Enter the other world!Hall finds a key . . . It opens a doorway . . . He is transported . . .

Into a strange virtual reality - part of a game world where humans are battling computers for survival! In this world, human imagination is everything and can even save your life. Hall must use all his game-geek knowledge to tell reality from virtual reality and find a way home.